JPS58190272A - Step motor device - Google Patents

Abstract

The motor unit comprises a stator, two independent rotors having each a permanent magnet located in a cylindrical space defined by three pole faces of the stator, two windings and at least a positioning magnet for holding both rotors, in the absence of current in the windings, in a position in which the magnetic axes of their magnets are each coincident with a rest axis. The field produced by the flow of a current in one of the windings is always at an obtuse angle to one of the rest axes and at an acute angle to the other. The two rotors perform steps of 360 DEG independently of each other in response to pairs of current pulses, the first of which is applied to one of the windings and the second of which is applied to the other winding. The direction of the current pulses determines which of the rotors performs a step, and the order in which the current pulses are applied to the windings determines the direction of rotation of that rotor. The motor unit can be used in particular in an electronic timepiece.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a stepper motor arrangement for driving two movable elements independently of each other.

These elements include in particular, but not exclusively, two time information display elements in electronic timepieces.

Electronic timepieces with mechanical elements for displaying time information, such as hands or display discs, generally include a motor which is coupled to the display element via a gear train. This motor is generally a stepper motor in which the rotor consists of permanent magnets that are magnetically coupled to the windings by a stator. Periodic pulses are applied to the windings by an electronic actuation circuit to advance the rotor by one step, or typically one-half revolution, for each applied pulse.

Many such stepper motors are intended to rotate in only one direction. However, sometimes it is desirable for the motor to be able to rotate in two directions, especially for the purpose of facilitating setting the time on a watch. For example, the particular configuration of the actuation circuit described in U.S. Pat. .

Bidirectional motors or reversible motors, which are designed to rotate in two directions, are also known, for example as described in Swiss Patent No. 616,602.

The timekeeping device of Naruura, in particular the one described in Swiss Patent No. 613,837, is equipped with two reversible motors.

Ten thousand of these two motors drive elements for displaying seconds and minutes, while the other motors drive elements for displaying seconds and minutes, for example? Drive the element for display. With such a configuration, it is very easy to set the time displayed by the timekeeping device, and in particular it is easy to change the displayed time zone, which can be done without changing the display of seconds and minutes. I can do it.

For watches, especially wristwatches, the available space Q'! , has a very controlled length. Therefore, it is difficult to house two motors inside a watch. Furthermore, since the motor is a relatively expensive element, the provision of two motors significantly increases the cost of the watch.

It is an object of the invention to occupy a relatively small volume and yet
It is very inexpensive compared to using two motors, and
The object of the present invention is to provide a motor device that makes it possible to perform the same functions as two separate motors.

This objective is achieved by a motor arrangement having two rotors, each similar to the rotor of a conventional stepper motor, each having a bipolar permanent magnet with its magnetic axis perpendicular to the axis of rotation of the rotor. . In the absence of other influencing factors, the two rotors are held in the rest position by one or two positioning magnets. The two magnetic fields, each generated by one winding, are coupled to the rotor by six co-arranged pole faces on each of the rotors.

When a current in the first direction flows through the winding, a magnetic field 'r'L 1
It forms an obtuse angle to the rest axis of one rotor and an acute angle to the rest axis of the other rotor. When current flows in the other direction in the windings, the magnetic field is at an acute angle to the rest axis of the first rotor and at an obtuse angle to the rest axis of the second rotor.

The individual stepping motions of the rotor are performed by pulse pairs consisting of current pulses in the same direction, the first pulse being applied to one winding and the second pulse being applied to the other winding. The direction of the current pulses determines the rotor to be stepped, and the order in which the current pulses are applied to the windings determines the direction of rotation of the rotor.

The present invention will now be described in detail with reference to the accompanying drawings.

In the embodiment shown in FIG. 1, a motor device according to the invention (hereinafter simply referred to as motor) comprises a stator 1 formed by a plate of soft magnetic material.

The stator 1 includes a first magnetic pole piece 2, the magnetic negative piece 2
The ends are cut in the shape of a concave arc, forming two pole faces 2a and 2b. Furthermore, stator 1
has two further pole pieces 3 and 4, one end of each of which is cut out in the form of a concave arc, forming two further pole faces 3a and 4a, respectively. There is.

The magnetic pole pieces 2, 3 and 4 have magnetic pole faces 2a, 3a and 4a.
are arranged so as to define a cylindrical space 5 between them. The ends of the pole faces 2a, 3a and 4a are in the form of narrowed sections of sufficiently small cross-section so as to have a roughness considerably greater than that of the pole pieces 2.3 and 4 and the rest of the magnetic circuit described below. Connected by certain regions 6, 7 and 8.

The stator 1 further comprises two other pole pieces 9 and 10 comparable to the pole pieces 3 and 4, the ends of which are cut in the form of concave arcs. They form magnetic pole faces 9a and 10a. The pole pieces 2, 9 and 10 are arranged such that the pole faces 2b, 9a and 10a define a second cylindrical space 11 between them. The pole faces 2b+9a and 10a are connected by constricted portions 12, 13 and 14 which have a higher reluctance scale than the flux roughtance of the remaining parts of the magnetic circuit.

In the illustrated embodiment, the narrowed portions 6, 7° 8.12.
13 and 14 are pole pieces 2, 3, 4°9 and 10
It is an integrated element. In other embodiments not described here, the constrictions could be replaced by strips or gaps of non-magnetic material. In the case of an air gap, the pole pieces 2, 3, 4.9 and 10 would be firmly fixed to a common support VC.

The ends of the pole pieces 3 and 9 which are further apart from the pole faces 3 a and 9 a are connected by an armature 15 forming the core of the winding 16 . Similarly, the ends of the pole pieces 4 and 10 remote from the pole faces 4 a and 10 a are connected by an armature 17 forming the core of a second winding 18 .

The armatures 15 and 11 are fixed to the pole pieces 3, 4, 9 and 10 by e.g. screws (not shown) which can also be used to fix the stator 1 in the desired position. It will be appreciated that the connection between the child and the pole piece is made in such a way that the reluctance of the connection is as low as possible.

The motor further includes two rotors.

Each of these rotors conventionally consists of a cylindrical, diametrically magnetized permanent magnet so as to be rotatable about an axis perpendicular to the plane of the drawing of FIG. The two bearings are fixed to a shaft supported between them. Each rotor also carries a binion. These pinions are 2
This gear engages with the first gear of two gear trains.

As disclosed in the aforementioned Swiss Patent No. 613837, one of the gear trains is used to drive the second and minute hands, and the other gear train drives the hour and date discs. It can be used for. It goes without saying that other combinations of display elements may also be used.

Is the illustration confusing? To avoid this, only permanent magnets 19 and 20 are shown in FIG. 1, and the rotational movement of the rotor is equivalent to the rotational movement of magnets 19 and 20.

The magnetic axes of magnets 19 and 20 are indicated schematically by arrows 19a and 20a pointing from south pole to north pole. These magnetic axes are
It is clear that it is perpendicular to the axis of rotation of the rotor as shown at t9c and 20c.

Two positioning magnets 21 and 22 in the form of longitudinally magnetized rods are respectively arranged in the constricted portion 6 in such a way that they are magnetically coupled to the magnets 19 and 20, respectively.
and 120 locations on the stator 1. The magnetic axes of the positioning magnets 21 and 22 are schematically indicated by arrows 21a and 22a pointing from the south pole to the north pole.

The magnets 21 and 22 have substantially two straight lines 31 and 32 in which the directions of the axes 21a and 22a are perpendicular to the rotation axes 19c and 20c of the rotors 19 and 200 passing through the centers of the pole faces 2a and 2b. arranged to match. Furthermore, axes 21a and 22a+
X, the direction from the center of the magnetic pole face 2a to the magnet 190 rotation axis 19c, and the direction from the center of the magnetic pole face 2b to the magnet 2
0 rotation axis 20c.

The magnetic fields of magnets 21 and 22 apply positioning torque to magnets 19 and 20 at a period of 660°. This torque causes magnets 19 and 20 to be returned to and held in their rest position.

In this rest position, the magnetic axes 1 of magnets 19 and 20
9a and 20a coincide with two fixed rest axes 19b and 20b, which are located on straight lines 31 and 32, respectively, and in the same orientation as the respective magnetic axes 21a and 22a.

In the embodiment described with reference to FIG. 1, the magnetic poles 2 are flat and square. Therefore, straight lines 31 and 32 coincide. The two rest axes 19b and 20b are thus aligned. However, this arrangement or structure is not essential. In fact, the pole piece 2 can be of any shape, flat or of other forms, straight @3
1 and 32 do not have to match.

Regardless of the configuration of the pole piece 2 and therefore regardless of the relative position of the straight lines 31 and 32, the rest axis 19b is aligned with the straight line 31.
The rest axis 20b is located on the straight line 32.
There must be. In order to meet this requirement, the magnetic axis 21
It is obvious that a and 22a can be positioned at arbitrary positions on the straight lines 31 and 32, respectively.

However, this configuration or arrangement is also not essential. In fact, in order to orient the rest axis 19b in the desired direction 7, it is easy to note that the magnetic axis 21a can be positioned virtually anywhere within the plane defined by the axis of rotation 19c and the straight line 31. will be understood. a
The only position where the axis 21ak position cannot be set is the position that coincides with the rotation axis $19C.

At any position set, the magnetic axis 21a is also such that the resultant magnetic field of the magnet 21 in the part of the plane defined above in the cylindrical space 5 has a non-zero component in the desired direction of the resting axis 19b. It can be oriented in any direction.

The same applies to the positioning magnet 22 as above. That is, the magnetic axis 22a of the magnet 22 is such that the magnetic axis 22a is aligned with the rotation axis 20.
Rotation axis 20c and straight line 3 except for the position that coincides with c
2 can be located virtually anywhere within the plane defined by 2. The magnetic axis 22a also has a cylindrical space 1
1 can be oriented in any direction such that the resultant field of the magnetic fields of the magnets 22 within the above-defined plane portion has a non-zero component in the desired direction of the rest axis 20b.

Positioning magnet 21 exerts a greater force on magnet 19 than magnet 120, and conversely positioning magnet 22 exerts a greater force on magnet 19 than magnet 120.
It will be appreciated that the arrangement must be such that it exerts a greater force on the magnet 2o than on the magnet 2o.

As is clear from the above discussion, the two positioning magnets 21
and 22, the magnetic axis is arranged on a straight line substantially perpendicular to the pole piece 2, and the pole faces 2a and 2
It would be possible to use a single magnet 2 with its magnetic axis intersecting the straight line at a point located approximately halfway between the centers of b.

For example, whenever the positioning magnet 21 is not located exactly in the same plane as the magnet 19, the force it exerts has a component parallel to the axis of rotation 19C. Due to this axial component, the friction of one of the rotor pivots consisting of the magnets 19 in the bearing increases. This disadvantage can be overcome by arranging another positioning magnet similar to magnet 21 in such a position that its magnetic axis is substantially symmetrical to magnetic axis 21a with respect to straight line 31. This further positioning magnet therefore applies a force to the magnet 19 such that the component in the direction of the axis of rotation 19c makes the component due to the magnet 21 zero or at least reduces it.

The same is true regarding the force generated by the positioning magnet 22 relative to the magnet 20. Accordingly, another positioning magnet having a magnetic axis substantially symmetrical with respect to the magnetic axis 22a with respect to the straight line 32 can be used to eliminate or at least reduce the axial force exerted on the magnet 20 by the magnet 22.

FIG. 1a is a cross-sectional view of one embodiment of a motor with the additional positioning magnet described above. All other elements of the motor shown are the same as the corresponding elements of the motor shown in FIG. 1a and are therefore designated with the same reference numerals. m
The cross-sectional view in Figure Ia shows two rotational axes 19c and 2.
0C and additional positioning magnets, the magnetic axes of which are designated by the references 21' and 21a' and 22' and 22a', respectively.

For example, when a current flows through the winding 16, the magnetic field generated by the current is transmitted through the armature 15, the pole piece 3, the pole face 3a, the cylindrical space 5 between the pole faces 2a and 4a, and the pole piece 2''. The circuit section formed by the parallel arrangement of the pole piece 4, the armature 17 and the pole piece 10 passes through a magnetic circuit comprising the pole faces 2b and 10a and the cylindrical space 11 between the pole faces 9a and the pole piece 9 in series.

Needless to say, this magnetic field passes through the magnets 19 and 20.

The lines of force of this magnetic field are indicated schematically by dashed lines 23. To simplify the drawing, no magnetic field lines are shown in the circuit portion formed by the pole piece 4, the armature 17 and the pole piece 10.

The arrow 23a indicates that the magnetic pole face 3 is caused by the current flowing through the winding 16.
The composite magnetic field generated in the space 5 between a and the magnetic pole faces 2a- and 4a? This is an abbreviation. Similarly, arrow 23
b schematically shows the resultant magnetic field in the space 11 between the magnetic pole face 9a and the magnetic pole faces 2b and 10a. arrow 2
The direction of 3a and 23b is the direction of the magnetic field generated by winding 16 in response to the current, which is arbitrarily assumed to be positive. Due to this magnetic field, the magnetic pole surface 3a moves as a north pole, and the magnetic pole surface 9a moves as a south pole. It goes without saying that this magnetic field will be in the opposite direction when the current flowing through the winding 16 is in the opposite direction, ie a negative current.

The magnetic pole face 3a then moves as a south pole and the magnetic pole face 9
a acts as a north pole.

Similar considerations apply to the magnetic field generated by the current flowing through the winding 18. The dashed line 24 schematically represents the lines of force of this magnetic field, and the arrows 24a and 24b indicate the direction in which a current, arbitrarily assumed to be positive, flows through the winding 18 in the cylindrical spaces 5 and 11. represents the magnetic field generated.

In this case, the magnetic pole face 4a moves as a north pole, and the magnetic pole face 10a moves as a south pole. When the current in the winding 18 becomes negative, the direction of the magnetic field also of course reverses, and the magnetic pole faces 4a&! S
The magnetic pole surface 10a serves as a north pole.

When the current flowing through the winding 16 is positive, the magnetic fields generated in the spaces 5 and 11 and indicated by arrows 23a and 23b form an obtuse angle with respect to the resting axis 19b and the resting axis 2
Note that it forms an acute angle with respect to 0b. Furthermore, this magnetic field is substantially perpendicular to the rotational axes 19c and 20C.

Similarly, when the current flowing through winding 18 is positive,
The current is generated in the spaces 5 and 11 and the arrow 24a
The magnetic fields indicated by and 24b also form an obtuse angle with the resting axis 19b and an acute angle with the resting axis 20b.

This magnetic field is also substantially perpendicular to the rotational axes 19c and 20c.

FIG. 1 illustrates these two conditions.

Each angle mentioned above and referred to hereinafter is defined by an arrow and a rest axis button that represent the magnetic field and one of the rest axes when the field is displaced in parallel until its origin coincides with the origin of the other force. is the angle formed.

Reversing the direction of the current flowing through windings 16 and 18 results in
The magnetic field generated by this current, in space 5, makes an acute angle with respect to the resting axis @19b, and in space 11, makes an obtuse angle with respect to the resting axis 20b? Form. Although this state is not shown, simply arrows 23a, 23b, 24a and 2
It can be easily inferred from FIG. 1 by inverting 4b.

Pole faces 2a and 2b are substantially symmetrical about respective rest axes 19b and 20b, respectively. Furthermore, pole faces 3a and 4a are substantially symmetrical to each other about resting axis 19b, and pole faces 9a and 10a are substantially symmetrical to each other about resting axis 20b. From the arrangement described above on the pole faces, it can be seen that the angle formed between the axis of rest and the magnetic field generated by windings 16 and 18 is symmetrical about the axis of rest when the currents flowing through said windings are in the same direction. It is. The magnitude of these various angles is determined in particular by each pole face 2a + 3a, 4a and 2b, 9a and 1
Depending on the angle that each of 0a occupies around spaces 5 and 11.

In practice, the obtuse angle formed by the rest axis and the magnetic field generated by the winding in the valley cylindrical space is between approximately 100° and approximately 160°, preferably approximately 120°.

The acute angle formed by the abovementioned axis and the abovementioned magnetic field is therefore between approximately 20° and 80°. The preferred value for an obtuse angle, 120°, corresponds to a value of 60° for an acute angle.

Next, the operation of the motor shown in FIG. 1 will be explained with reference to FIG. 2.

FIG. 2 shows a table in which row A corresponds to the rest state of the motor. Each of the other rows B-M corresponds to a respective stage in the operation of the motor.

The symbol (+) or (-) entered in columns 16 and 118 indicates that a positive or negative current is flowing through winding 116 or winding 18, respectively, in the corresponding stage. It goes without saying that the fact that these symbols are not written indicates that no current is flowing through the winding 16 or the winding 18.

The arrows shown in columns C5 and C11 represent the direction and configuration of the magnetic fields generated in cylindrical space 5 and cylindrical space 11, respectively, by the currents shown in columns 116 or 118 of the same row.

In order to simplify the explanation below, only magnet 19 and 200 rotations will be considered. It is clear that the rotor or hs rotor of which these magnets form part also carries out the same rotational movement.

in response to the magnetic fields shown in columns C5 and C11;
Or the positions taken by the magnets 19 and 20 under the influence of the positioning torque are such that the magnetic axis 19a
and 20a with solid arrows. Therefore, in row A, these arrows also indicate the rest axis 19b
and 20b. The dashed arrows in columns R19 and R20 represent the positions occupied by the magnetic axes 19a and 20a before assuming the positions indicated by the solid arrows.

Finally, in Figure 2, what is shown? To be clear,
The values of the acute and obtuse angles mentioned above are arbitrarily 45° and 13
5° is selected. However, it is to be understood that these values are merely non-limiting examples.

Row A of the table shown in FIG. 2 corresponds to the rest position of the motor. No current flows through windings 16 and 18, and magnetic axes 19a and 20a coincide with rest axes 19b and 20b.

In rows B, C and D, the magnet 19 and therefore also the rotor of which it is a part, moves one step, or one complete revolution, in the direction indicated by arrow 25 in FIG. The manner in which the motor is operated to accomplish this is illustrated. Note that this direction is arbitrarily selected as the positive rotation direction in the case of this magnet.

Initially, a positive current is applied to winding 16 by the control circuit (row B). Note that this control circuit will be explained later. The magnetic field generated in the cylindrical space 5 by this current is in the direction and configuration shown in column C5. If the strength of the i current flowing through the winding 16 is sufficient, the magnet 19 will move along the magnetic axis 19. Rotate until a becomes parallel to the magnetic field.

In this case, the magnetic field indicated schematically in column or column C5 lies at an obtuse angle to the rest axis 19b, so that the magnetic field 19 is rotated by an angle of more than 90° in the positive direction.

When magnet 19 reaches, at least approximately, the position shown in column R19, the control circuit interrupts the current in winding 16 and allows a positive current at to flow in winding 18 (row C). Cylindrical space 5
The magnetic field generated by this current is in the direction and configuration shown in column or column c5. Therefore, the magnet 19 continues to rotate in the positive direction until its magnetic axis 19a becomes parallel to the magnetic field. This position is shown in column R19.

When the magnets 19 have at least approximately reached said alignment, the control circuit interrupts the current in the winding 18 (row D). The magnet 19 is then influenced only by the magnetic field of the positioning magnet 21 and completes its rotational movement. The sniffing magnet 39 resumes its rest position after making one full rotation in the positive direction in response to a pair of positive current pulses. Note that the first pulse of the pair of current pulses is applied to winding @16, and the second pulse is applied to winding @18! As will be clear from the above, whenever a pair of positive currents as described above are applied to the windings 16 and 18 in this order, the magnet 19 and hence the rotor of which it also forms a part. Make one complete revolution again in the positive direction.

The magnetic field generated by the current flowing through the windings 16 and 18 and causing the magnet 19 to rotate also passes through the cylindrical space 11. Its direction and configuration are shown in column or column 11. Thus, the magnet 20 also, in response to a first current pulse applied to the winding 16, absorbs the magnetic field generated by the current pulse until it reaches the position indicated in the column of row B or column R20. It rotates by an angle equal to the angle formed by the body magnetization $20b. This angle is an acute angle, so that when the current flowing through the winding 16 is interrupted and current flows through the winding 18, the magnet 2o begins to rotate in the opposite direction. The magnet passes through its rest position and returns again to the position shown at C. In this position, the magnetic axis 20a is also at an acute angle to the rest axis 20b. When the current in the winding 18 is interrupted at the stage indicated by the line, the magnet 20 will assume its rest position again under the influence of the positioning torque generated by the magnet 22.

Thus, magnet 20 only makes a rocking motion (image) about its rest position in response to a pair of positive current pulses flowing through windings 16 and 18 and causing magnet 19 to rotate.

Rows E, F and G of the table shown in FIG. 2 outline the operation of the motor to rotate magnet 19 one step in the negative direction.

The control circuit initially applies a positive current to winding 18 (row E).

The magnetic field generated in the cylindrical space 5 by this current is
column C5, and magnet 19 is shown in column R.
Rotate in the negative direction to the position shown at 19. In this case too, the magnet 19 rotates through an angle greater than 90°. This is because the magnetic field generated by the positive current flowing through the winding 18 is at an obtuse angle with respect to the rest axis 19b.

When magnet 19 reaches, at least approximately, the position shown in column R19, the control circuit interrupts the current flowing through winding 18 and causes positive current to flow through winding 19 (row F).
). Therefore, the magnet 19 has its magnetic axis 19a in the column C.
Continue its rotational movement in the negative direction until it is parallel to the direction of the magnetic field shown at 5.

The control circuit then interrupts the current flowing through winding 19 and magnet 19 completes its rotational movement in response to the positioning torque generated by magnet 21.

The magnet 19 therefore completes one complete revolution in the positive direction in response to a pair of positive current pulses, the first of which is applied to winding 18 and the second to winding 16. This means that you have done this.

As can be easily understood, in this case as well, the magnet 20 is
It merely performs a rocking motion (oscillation) about its rest position in response to the two positive current pulses.

Rows H, I and J of the table shown in FIG. 2 contain magnets in the direction shown by arrow 26 in FIG. The manner in which the motor operates to rotate the motor 20 one step, ie, one complete revolution, is outlined.

The control circuit first causes a negative current to flow through the winding 16 (
Row H). The magnetic field generated in the cylindrical space 11 by the current is therefore in the opposite direction to that shown in FIG. 1 by arrow 23b. This magnetic field is shown in column or column C11. In this case, the magnetic field extends along the resting axis 20b
, so that magnet 20 rotates through an angle greater than 90° in the positive direction.

When the magnet 20 reaches, at least approximately, the position shown in column R20, the control circuit interrupts the winding 160' current and passes negative current 4 through the winding 18 (row -). The magnetic field generated in the cylindrical space 11 by this current is the column C11.
is shown. Therefore, the magnet 20 is connected to the column R20.
Continue rotating in the positive direction until it reaches the position shown in .

The control circuit then interrupts the current in the winding 18.
, and the magnet 20 completes its rotational movement under the influence of the positioning pulse generated by the magnet 22.

Thus magnet 20'L'J, in response to a pair of negative current pulses, the first pulse being applied to winding 16 and the second pulse being applied to winding 18, Perform one step in the positive direction.

As is readily apparent, in this case the magnetic field generated by the negative current pulses in windings 16 and 18
It is at an acute angle to the rest axis 19b of 9. Therefore, the magnet 19 merely performs a swinging motion about its rest position in response to the negative current pulse.

In the rows of the table shown in FIG.
The operating mode of the motor to make the motor move one step in the negative direction is the general idea.

The control circuit first causes a negative current to pass through winding 18 (
Line K). The magnetic field generated in the cylindrical space 11 by this current is shown in column or column C11. magnet 20
rotates through an angle greater than 900 in the negative direction until reaching the position shown in column R20.

The control circuit then interrupts the current in winding 18 and allows negative current to flow through winding 16 (row L). The magnet 20 therefore continues to rotate in the negative direction under the influence of the magnetic field shown in column C11 until it reaches the position shown in column or column R2L].

Upon reaching the position shown in column R20, the control circuit interrupts the current in the winding 16 (row M) and the magnet 20 completes its step under the influence of the positioning torque.

The magnet 20 thus receives a negative current pulse in response to a pair of negative current pulses, the first pulse being applied to winding 18 and the second pulse being applied to winding 16. Step one step in the direction.

As is readily apparent, in this case too the magnet 19 carries out only a rocking movement (oscillation) about its equilibrium position.

In the example described above, positioning magnets 21 and 22
In this case, the rest axes 19b and 20b are both rotational axes 19C from the center of each magnetic pole face 2a and 2b to each other.
and 20C.

However, it will be appreciated that these positioning magnets 21 and 22 may be arranged such that the resting axes 19b and 20b are both in opposite directions.

In this case, the magnets in which the above-mentioned planar current flowing through the winding set 16 or the winding 18 is generated in the cylindrical spaces 5 and 11 are at an acute angle with respect to the rest axis 19b and the rest axis @ 20b. It is an obtuse angle to. Conversely, the magnetic field generated in the cylindrical spaces 5 and 11 by a negative current flowing through the windings 16 or 18 is at an obtuse angle to the resting axis 19b and at an acute angle to the resting axis 20b. Thus, the previously mentioned pair of positive current pulses will cause magnet 20 to rotate, while the negative current pulse pair will cause magnet 19 to rotate. When the first pulse of each pulse pair is applied to the winding 16, the direction of rotation of these magnetic fields is positive, and when applied to the first pulse winding ↑8, the direction of rotation is negative.

In summary, a rotor constructed by two magnets and therefore also by these magnets is operated by a pair of current pulses in the same direction, the first of which is applied to one of the windings, the second of which is applied to one of the windings; The pulses are applied to the other windings) individually and step by step. The direction of the current pulses determines which magnets are taken one step, and the order in which the current pulses are applied to the windings determines the direction of rotation of the magnets.

In the motor operation example described above, the end of the first pulse of each pair coincides with the beginning of the second pulse. However, depending on the mechanical load being driven by the motor, the second pulse of each pair of pulses may occur slightly earlier or later than the end of the first pulse. In the former case, the torque generated by the motor will increase, but the power consumer will also suffer somewhat. In contrast, in the latter case the power consumption of the motor is reduced, but there is also a slight reduction in the torque that the motor can generate.

FIG. 3 is a plan view of another embodiment of the motor device according to the present invention.

Like the motor shown in FIG. 1, the motor shown in FIG. 6 also has a stator 51 formed from a plate of soft magnetic material. This stator 51 has a first fflFai piece 52, the end of which is cut into a concave arc shape to form two pole faces 52a and 52b.

The stator 51 comprises two further pole pieces 53 and 54, one end of each of which is cut out in the form of a concave arc to form two pole faces 53a and 54a. The pole faces 52a, 53a and 54a define a cylindrical space 55, and these pole faces define a constriction 56,57.
and 58.

The stator 51 further has two pole pieces 59 and 60, each of which is cut out at one end in the form of an arc to form a pole face 59a and 60a, respectively. The pole faces 52b, 59a and 60a define a second cylindrical space 61 and are joined by constrictions 62, 63 and 64.

As in the embodiment shown in FIG.
3, 54.59 and 60 are integral with the constriction 56.5
7.58, 62.63 and 64 may be replaced by strips or air gaps of non-magnetic material.

The pole piece 5 that is farther away from the pole faces 53a and 59a
The ends of 3 and 59 are connected by an armature 65, which in this example is integral.

Similarly, the ends of pole pieces 54 and 60 remote from pole faces 54a and 60a are connected by armature 66, which is also integral.

In the embodiment shown in FIG. 6, the motor also has two windings designated 67 and 6B. have. These windings 6
7 and 68 are a common core 6 fixed to the armatures 65 and 66 and to the pole pieces 52 in a manner not shown.
It is attached to 9.

In a variant of this embodiment, shown in part in FIG. 3a, instead of a common core 69 for the windings 67 and 68, two separate cores 69a and 69b are used. A first end of each of cores 69a and 69b is connected to pole piece 52, and a second end thereof (
In Fig. 6a, each armature 65 (not supplied with water) is
and armature 66.

As in the structure shown in FIG. 1, the motor has two rotors, represented by magnets 70 and 11 forming part thereof.

Two positioning magnets 72 and 73 in the form of longitudinally magnetized bars are arranged at the constrictions 56 and 62 of stator 51 in the vicinity of magnets 70 and 11, respectively. magnetically coupled to. Magnets 12 and 73 have their magnetic axes 72a and 73a substantially aligned with rotational axes 70C and 71c.
are perpendicular to the magnetic pole faces 52a and 52, respectively.
They are arranged so as to coincide with two straight lines 33 and 34 passing through the center of b, respectively. Furthermore, the magnetic axis 7
2a is arranged in the direction from the center of the magnetic pole face 52a toward the rotation axis 70c, while the magnetic axis 73a is arranged in the direction from the rotation axis 71c towards the center of the magnetic pole face 52b.

In the absence of external influences, magnets 10 and 11 are subjected to positioning torques and their magnetic axes 70a and γ
1a is held in the position shown in FIG. In this position, axes 70a and 71a coincide with rest axes @70b and 71b. As in FIG. 1, these rest axes essentially curve around the centers of pole faces 52a and 52b and pass through rotational axes 70C and 71c of magnets γ0 and 11, respectively. That is, pause @ line) each straight line 3
3 and 34. As can be seen, the rest axis is oriented in the same direction as the magnetic axes 72a and 73a.

In another variation of this embodiment, shown in Figure 3, a single magnet 80 is used instead of the two positioning magnets 12 and 130. The magnet 80 is positioned on the pole piece 52 in such a way that its magnetic axis 80a lies on a line 11 connecting the centers of the pole faces 52a and 52b.

The positioning torque applied to magnets 70 and 71 by magnet 80 is the same as the torque produced by magnets 72 and 13 in FIG.

Therefore, the rest axes 70b and 71b are also the same as the rest axes shown in FIG.

It should be noted that this variant and the variants described above can be implemented independently of each other. - The reason for showing them at the beginning is to avoid an unnecessary increase in the number of drawings.

In the practical example described with reference to FIG.
is flat and straight. This means that lines 33 and 3
4 means a match.

As in the case of the structure of FIG. 1, this arrangement is not essential; the pole piece 52 can be of any shape, even flat, such that the straight lines 33 and 34 do not coincide. You don't have to.

From the same considerations as mentioned above in connection with Figure 1, it follows that
Also in the motor described in connection with the figures, the magnetic axis 72a of the magnet 72 can be located at substantially any position within the plane defined by the axis of rotation 70C and the straight line 33, and the magnetic axis 72a of the magnet 73 Axis 73a could also be located substantially anywhere within the other plane defined by axis of rotation 71C and straight line 34.

In this case too, ta't! [l]72a and 7
The only position where 3a cannot be placed is where these magnetic axes coincide with rotational axes 70C and 71c, respectively.

Similarly, ffl@72a and 73a indicate that the magnetic fields of the respective magnets 72 and 73 are combined in the corresponding planar portions in the cylindrical spaces 55 and 61.
The lines 70b and 71b can be arranged in any direction so that each has a non-zero component in a desired direction.

Again, positioning magnet 72 must be self-positioned such that it applies a force to magnet 70 that is greater than the force it applies to magnet 70, and magnet 13 It will be appreciated that the arrangement must be such that a force is applied to magnet 11 that is greater than the force applied to magnet 11 .

In the structure described with reference to FIG. 3a in which a single magnet 80 is used in place of the positioning magnets 72 and 730, similar considerations as mentioned above make it clear that:
The positioning magnet 80 can also be arranged such that its magnetic axis 80a lies in a plane containing the two rotational axes 70'c and 71c. The magnetic axis 80a also corresponds to the rotational axis 70
c and Tic, and this magnetic axis 80a must be located substantially equidistant from the resting axis 70b such that the resultant magnetic field in the plane portions within the cylindrical spaces 55 and 61
Any configuration can be used as long as the magnetic field has a non-zero component in the desired direction of 71b and 71b.

As with the structure of FIG. 1, the axial component of the force exerted by positioning magnets 72 and 73 is similar to that of auxiliary positioning magnets whose magnetic axes are symmetrical with respect to magnetic axes 72a and 73a with respect to straight lines 33 and 34, respectively. It can be made into a lily.

FIG. 3b is a cross-sectional view of a motor similar to the motor shown in FIG. All other elements of this motor are the same as the corresponding elements of the motor shown in FIG. 3 and are therefore designated with the same reference numerals. The cross-section shown in FIG. 6b passes through two axes of rotation 70c and 71c, and the auxiliary positioning magnet and its magnetic axis are referenced 72'.

72a' and 73', 73a', respectively.

In the case of the motor shown in FIG. 3a, even if the auxiliary positioning magnet is arranged with respect to the pole piece 52 so as to have a magnetic axis symmetrical to the magnet @80a, the magnet 80 causes the magnet 70 to
It is possible to make the axial component of the force applied to and 71 zero.

FIG. 6C is a cross-sectional view of the motor with the auxiliary magnets in a plane including the two rotational axes 70c and 71c. This auxiliary magnet and its magnetic axis are indicated by reference numerals 80' and 80a', respectively. All other elements of this motor are the same as those of the motor shown in FIG. 6 and are designated by the same reference numerals.

In the motor shown in FIG. 3 and a variant thereof, the magnetic field generated by the windings 61 in response to the current is distributed within the armature 65 and the pole pieces 53 and 59 on each side of the core 69. Most of this magnetic field is in the cylindrical space 55
and 61, then through the pole piece 52 to the core 69.
Return to A small portion of this magnetic field also returns to core 69 via pole pieces 54 and 60 and armature 66.

The lines of magnetic field in the core 69, armature 65, pole pieces 53 and 59, and pole piece 52 are represented by dashed lines 14 and 75.
This is an abbreviation. Arrow? 4a and 75a indicate the direction and configuration of the resultant magnetic field produced in the cylindrical spaces 55 and 61 when a current, arbitrarily defined as positive, flows through the winding 67.

Winding 68 generates a similar magnetic field when current flows through it. Core 69, armature 66, pole pieces 54 and 60
Also, the lines of magnetic force of the magnetic field in the magnetic pole piece 52 are represented by the broken line 7
6 and 77. Arrows 76a and 7γa
shows the direction and configuration of the resultant magnetic field generated in the cylindrical spaces 55 and 61 when the current flowing through the winding 69 is positive.

Due to the above-described relative arrangement of the various pole faces and the two positioning magnets, the magnetic field generated by the winding 67 is always at an obtuse angle to one of the resting axes 70b and 7lb, while the other resting @ forms an acute angle to [stock]. The same is true for the magnetic field generated by winding 168. A practical and preferred value for such an angle is
This is the same as in the embodiment shown in FIG.

As is clear, the above considerations also apply to the variants shown in FIGS. 3a, 3b and 3c.

FIG. 4 is a table summarizing the operating mode of the motor shown in FIG. 3. As in the case of the garment shown in FIG. 2, row A+corresponds to the resting state of the emulator, and in rows B, C and D and E, F and G, magnets 70 are placed in the direction of arrow 18 and opposite thereto. The operation mode of the motor for making one rotation in each direction is summarized, and in the other hand H9 and J and L and M, the magnet 11 is connected to the arrow 19.
The operating mode of the motor for making one rotation in the direction indicated by and in the opposite direction is generally the same.

The symbols (+) and (-) in column or column 167 and I6B indicate that positive or negative current is present in winding 6, respectively.
1 or 68. The arrows shown in columns C55 and c61 represent the direction and configuration of the composite magnetic field generated in the cylindrical spaces 55 and 61 by these currents. Finally, columns R70 and R
The solid arrows at 71 represent the positions assumed by the magnetic axes 70a and 7ia of magnets 10 and 71 in response to said magnetic field or under the influence of the positioning torque generated by magnets γ2 and 73, while the dashed arrows represent the positions assumed by the magnetic axes 70a and 7ia. 71a represents the preceding position.

The various steps in the operation of the motor shown in FIG. 3, which are outlined in the table of FIG. 4, are similar to the corresponding steps in the operation of the motor shown in FIG. I don't. Indeed, as in the case of the motor shown in FIG. 1, magnet 70 rotates one step in response to six pairs of positive current pulses applied to windings 61 and 68, It can be easily seen that the motor rotates one step in response to six pairs of negative current pulses applied to the motor. The magnets 70 and 71 are arranged such that the first pulse of the six pairs is connected to the winding 6-
7 rotates in the positive direction, and the first
When the th pulse is applied to the winding 68, it rotates in the negative direction.

Also, as will be easily understood, if the positioning magnets 72 and γ3 are arranged such that their resting axes 70b and 71b both face in the opposite direction to that shown in FIG. It is magnet 11 that rotates one step in response to each pair of positive current pulses, and magnet 70 that rotates one step in response to six pairs of negative current pulses.
becomes. The direction of rotation of magnets 70 and 71 is the same as described above.

To summarize above, as in the case of the motor in Fig. 1, the 6th
The two magnets of the motor shown are actuated individually and stepwise (step-by-step) in the same direction by a pair of current pulses. In this case, the first pulse of the pair of pulses is applied to one of the windings and the second pulse is applied to the other winding. The direction of these current pulses determines which magnet is to perform a step, and the order in which the pulses are applied to the windings determines the direction of rotation of the magnet.

Again, the second pulse of the six pairs could be triggered just before or after the end of the first pulse, in which case the effect would be similar to the operation of the motor shown in FIG. is obtained. FIG. 5 is a circuit diagram illustrating one embodiment of a circuit for operating a motor according to the invention, and FIGS. FIG. 3 is a waveform diagram showing rL currents measured at various circuit points in one circuit.

The motor, which can be any of the motors mentioned above, is represented in FIG. 5 by two volumes @B1 and B2. Windings B1 and 82 are connected to a dual bridge circuit formed by six field effect transistors (FETs) T1 to T6. Transistors Ti, T3, and T5 are P-channel FETs, and their north ends a are connected to the positive pole of a circuit power supply (not shown). Transistor T2゜T4 and T
6 is an N-channel FET whose source electrode is connected to the negative electrode of the striped power source.

The r-rain electrodes of transistors T1 and T2 are both connected to one of the terminals of winding B1, the drains of transistors T5 and T6 are both connected to one of the terminals of winding B2, and the drains of transistors T3 and T4 are connected together to one of the terminals of winding B1. are both connected to the second terminals of windings B1 and B2.

The direction in which the wire forming the winding is wound is based on the assumption that the direction of the current indicated by 1 and 2 in Figure 5 is positive in relation to Figures 1 and 6. The winding direction corresponds to the winding direction.

r−) of transistors T1 to T6; iG1 to G;
6 is an amplifier PC 81 connected as shown in the figure.
to 88, OR/r-) 89 to 94 and to a logic circuit formed by inverters 95 to 99.

Dates G1 to G6 are output from the logic circuit to the logic state rO
J or receives a signal that is in logic state "1". These logical statements are expressed by the potential of the negative terminal of the power supply and the potential of the positive terminal of the power supply, respectively. Therefore, the key
) G2. Signal rOJ applied to one of G4 and G6
or r-tG1. C) A signal "1" applied to one of G3 and G5 switches the corresponding transistor to the non-conducting state. On the other hand, r-to o2. Signal "1" applied to one of G4 and G6, or c-Gt, o3 and G5
A signal "0" applied to one of the transistors switches the corresponding transistor into conduction.

The actuation circuit 100 (not described in detail).

Connect all other t-child circuits of the motor and related devices. If the device is an electronic timepiece, the circuit 100 includes a time base constituted by a crystal oscillator and a frequency divider, and a time setting circuit associated with a control stem and/or one or more pushbuttons. and auxiliary circuits such as timing circuits, alarm circuits or other circuits as required.

The circuit 100 of the illustrated embodiment has an output 100ak, which is connected to one of the magnets of the motor.
It generates a signal, ie, a pulse, which temporarily assumes a logical value of "1" whenever a step is to be executed. In the illustrated embodiment, this magnet is the motor magnet 19 shown in FIG. 1 or the motor magnet 70 shown in FIG.

As an example, the rotation direction of the magnet is determined by the circuit 1 at the output end 100b connected to the input end of the inverter 95 and one input end of the dates 82 and 84.
Determined by the signal button generated by 00. This signal indicates that the magnet is 1. The logic state is "0" if the magnet is to rotate in one direction, and the logic state is "1" if the magnet is to rotate in the negative direction. Similarly, circuit 10
The port generates a pulse at output 100c which takes the logic value "1" whenever the second magnet of the motor is to perform one step. In the embodiment described here, this magnet is the motor magnet 20 shown in FIG. 1 or the motor magnet γ1 shown in FIG. The direction of rotation of this second magnet is determined by the signal generated by the output 100d of the circuit 100. Note that this output terminal 100a+i, the input terminal of the inverter 96 and the 1 of the dates 86 and 88
connected to one input end. In this case as well, if the second magnet is to rotate in the positive direction, the above signal is
0'', and when the second magnet is to rotate in the negative direction, the logic state 6F1J is obtained.

The circuit 100 also has, for example, 128 at its output 100e.
A synchronous signal of frequency H2 is generated. With this signal,
The signals generated from output terminals 100a and 100C are:
The signal generated at the output terminal 100e is controlled once so that it becomes a logic state "1" when it becomes a logic state "0".

Finally, the circuit 100, the output terminal 100a and the 100
C is configured such that it does not supply each signal at the same time.

Clock input terminal cl+ of D-slip clock 101
It is connected to the output end 100a of the z circuit 100. The Q output terminal of this slip-flop 101 is connected to one input terminal of r-gates 81 and 84, and the Q output terminal is
The reset input R is connected to the output 100e of the circuit 100.

The clock input c1 of a second slip clock, also of D type, indicated by the reference numeral 102, is connected to the output end of the flip clock 101 and is connected to the output end of the flip clock 101.
The Q output terminal of the clock 102 is
The output terminal is connected to the D input terminal, and the reset input terminal R is connected to the output terminal 100e of the circuit 100 via the inverter 103.

The third D-slip clock 104 is a circuit 100f.
7) Clock input terminal C1 connected to output terminal 100c, Q output terminal connected to one input terminal of gates 85 and 88, Wataru output terminal connected to D input terminal, and circuit 1
The reset input terminal R connected to the output terminal 100e of 00? have

Finally, the fourth D-7 lip-flop 1.5 has a clock input c1 connected to the output of the Fritsuno 70 tube 104, and an output of the R-486 and 870 connected to one input. The output terminal B is connected to the D input terminal, and the reset input terminal R is connected to the output terminal of the inverter 103.

As easily understood, slip-frozen 101
．． 102.104 and 105. Output terminal is in logic state [
0-1, transistors TI, T3 and "
B5 case a1. o3 and 05 are logic state "1"
and transistor T2. Ding'4. T5's Kate o
2, a4 and o6i go to logic state r OJ. All transistors T1 to B6 are therefore non-conducting and no current flows through @@B1 and B2.

When the output 100a of the circuit 100 generates one pulse, the Q output of the slip-flop 101 is in the logic state "1". When the signal generated by the output 100e of the circuit 100 goes to status "1", the slip
The Q output of clock 101 returns to state rOJ again. In this way, during half the period of the signal generated by the output 100e of the circuit 1Qo, i.e. for about 6.9 milliseconds, the state r
A pulse of 1 J is supplied from the Q output terminal of the flip 70 tube 101.

At the end of each pulse generated by the Q output of flip-flop 101, the Q output of flip-flop 102 will also be in state "1", approximately 6.9 millimeters lower than when output 100e of circuit 100 is in state rOJ. State “0” after a second delay
Return to

Therefore, the Q output terminal of the fritsuno flop 101 is
Whenever the first magnet of the motor is to rotate once, it generates two successive pulses each having a duration of about 3.9 milliJ seconds.

When the output 100b of the circuit 100 is in the state fOJ,
The first of these two pulses is "'
-) 81 and 892, the voltage is applied to the gate electrode G1 of the transistor T1 via the inverter 97 and the gate electrode G1 of the transistor T4 via the gate 93.
is applied to These two transistors T1 and T49 are thus switched into conduction during the duration of the pulse and current flows through winding @B1 in the positive direction.

The second of these pulses is generated from the Q output of Flip Flora 7'' 102.
and 90 through the gate 93 of the transistor T
4) is applied to the pole G4 and the inverter 98
to the r-) electrode G5 of the transistor T5.

Transistor T1 therefore returns to a non-conducting state, transistor T 4 LX remains conductive 9 and transistor T5 switches to a conducting state for the duration of the second pulse. Therefore, the current in winding B1 is interrupted and winding B
2, the current flows in the positive direction. In this way, circuit 10
In response to the signal generated from the zero output 100a, positive current pulses flow through windings B1 and B2 one after another in this order. This condition, illustrated in the waveform diagram shown in FIG. 6a, is similar to the clothing row B shown in FIGS.
This corresponds to the conditions shown in C and D. The first magnet of the motor and thus the rotor of which this magnet forms part, circuit 1
circuit 100 when output 100b of 00 is in state "o"
In response to each pulse supplied from the output end 100a of
Take one step, or one complete revolution, in the forward direction.

When the output side 1100b of the circuit 100 is in the state ar1-1, the flip 70 tube 101. Pulses tts, pr-184 and 90&, supplied from the output, are applied via the date 93 to the r-) electrode G4 of the transistor Q4 and via the inverter 98 to the transistor T5.
is applied to the gate electrode G5. These two transistors T4 and T5 are then conductive and current flows in the winding B2 in the positive direction for the duration of the pulse. At that point, it was Flip 70 Tsubu 102N.

The pulses generated from the output end are sent to gates 82 and 89?
r- of transistor T1 via inverter 97.
When applied to gate electrode G1 and via date 93, gate 4 of transistor T4 remains conductive, and transistor T1 is switched to a conductive state. A current, which is then also positive, will flow through winding B1 for the duration of this pulse.

At this point, in response to a signal provided from output 100a of circuit 100, positive current pulses will flow through windings B2 and B1 one after the other in this order. This situation, shown in FIG. 6B, corresponds to the situation shown in rows E, F' and 0 of the tables shown in FIGS. 2 and 4. Thus, the first magnet of the motor takes one step in the negative direction in response to each pulse provided from output 100a of circuit 100 when output 100b of circuit 1oo goes to state "1".

By analogy with the above description of the operation of fritsuno flops 101 and 1o2, 7-lip 70-tubes 104 and 105. It will be readily appreciated that the output will generate two successive pulses each time output 100c of circuit 100 generates one pulse.

When the output 100d of the circuit 100 is in the state "0", the pulse provided from the Q output of the flip-flop 104 is transferred to the transistor T2 via Y-to-B5 and 91.
r-) of the transistor T3 is applied to the electrode G2 and via the P-gate 94 and the inverter 99.
applied to pole G3. Transistors T2 and T3 thus conduct for the duration of this pulse and a negative current flows into winding B.
Flows through 1.

The Q output of flip-flop 1.05 then supplies the pulses to gates 87 and 92? [- is applied to the r-to electrode G6 of the transistor T6 and the date 94
1 of the transistor T3 is applied to the pole G3 via the inverter 99. Therefore, transistor T3 remains conductive for the duration of this pulse, transistor T6 switches to conductive, and a negative current flows into winding B.
It flows to 2. This situation, shown in Figure 7a, is
This corresponds to the appearance of rows H, I and J of the table shown in the figure and FIG.

Thus, the second magnet of the motor advances one step in the positive direction in response to each pulse provided from output 100C of circuit 100 when output 100d of circuit 100 goes to state "0". .

When the output 100d of the circuit 100 goes to state "1", the pulse +sr- supplied from the Q output of the flip-flop 104 is applied to the gate electrode G6 of the transistor T6 through the gates 8B and 92. /7' of transistor T3 via 94 and inverter 99
- electrode a3 (applied). Thus, these two transistors T3 and T6 conduct and a negative current flows in the winding @B2 during this pulse.

Then, the pulse supplied from the Q output of 7 lithosoflora 7° 105 is applied to the gate electrode G of transistor T2 via r-gates 86 and 91, and
'-) 94 and the inverter 99 & is applied to the gate electrode G3 of the transistor T3. Transistor T3 then remains conductive for the duration of this pulse, transistor T2 switches into conduction, and a negative current flows through winding B1.

This state, shown by the button in FIG. 7b, corresponds to the states shown at L and M in the table rows shown in FIGS. 2 and 4. The second magnet of the motor is therefore the output 1 of the circuit 100.
When 00d becomes the state "1", the output terminal 1 of the circuit 100
1 in the negative direction in response to each pulse supplied from 00C.
Do some exercise.

The control circuit described above generates pairs of current pulses of equal duration. Furthermore, the beginning of the second pulse of the six pairs is the first
It coincides with the end of the second pulse f2. Finally, all transistors T1 to T6 are non-conducting between current pulse pairs. It will be appreciated that the control circuit may be modified, if desired, to generate pulses of different duration and/or so that the second pulse of the six pairs occurs before or after the end of the first pulse. It is oT ability. Also, six transistors Ti, T3 and T5 or three transistors T2, T4 and It is also possible to modify T6 to be conductive between current pulses.

These modifications can be easily figured out by experts in the relevant technical field, so their explanation will be omitted here.

The motor control circuit can also be combined with a circuit for controlling the duration of the current pulses depending on the magnitude of the mechanical load actually being driven by the motor. In cases where two windings are not activated or energized at the same time, the pulse duration control circuit can be connected to the non-current winding by a switching circuit operated by a signal supplied by a logic circuit. is possible. A pulse duration control circuit then simply uses the voltage induced in the winding to which the circuit is connected to control the current flowing through the other winding at a time that depends on the mechanical load being driven by the motor. tS can be cut off. Many types of control circuits of this type are well known and will not be described here.

It will be understood that the invention is not limited to the embodiments described above with reference to the drawings. In particular, many changes may be made in the form and arrangement of the various parts of the motor without departing from the scope of the invention.

[Brief explanation of drawings]

FIG. 1 is a plan view showing a first embodiment of the motor device according to the present invention, FIG. 1a is a sectional view showing a modification of the motor device shown in FIG. 1, and FIG. 2 is a plan view showing a modification of the motor device shown in FIG. 1. Figure 3 showing a table summarizing the various stages in the operation of the motor device;
6 is a plan view showing a second embodiment of the motor device according to the present invention, FIG. 6 is a plan view showing a portion of a modification of the motor device shown in FIG. 6, and FIGS. 6b and 3c are FIG. 6 is a cross-sectional view of a modification of the motor device shown in FIG. 6; FIG. FIGS. 6a, 6b, 7a and 7b illustrate an embodiment of a control circuit for a motor arrangement according to the invention, and FIGS. 5 is a waveform diagram showing signals measured at various circuit points of the circuit shown in FIG. 5; FIG. 1... Stator, 2, 3, 4, 9.10, 52°53.5
4,59.60...Magnetic pole piece, 5. IL55.61
Cylindrical space, 16, 18, 67° 68.6L B...
Winding, 15.17, 65°66 Armature, 19, 20
, 21.22, 70° 71.72, 73.80... Magnet, 51... Stator, 69, Core, 81.82.83,
84,85°86.87.88 and gate, 8
9゜90.91,92,93.94...or date,
95.96,97,103...Inverter, 100.
...Operation circuit, 101, 102, 104, 10591.
Flip-flop, T...field effect transistor,
G-date,

Claims (1)

Claims: 1. A rotor comprising a first permanent magnet having a first axis of rotation and a first magnetic axis substantially perpendicular to the first axis of rotation. and a second rotor including a second permanent magnet having a second axis of rotation and a second magnetic axis substantially perpendicular to the second axis of rotation, and other effects. means for orienting said first and second magnetic axes along first and second resting axes, respectively, if absent; and for said first magnet and said second magnet; means for applying a first magnetic field in response to a first electric current and a second magnetic field in response to a second electric current, the first and second magnetic fields being applied in response to the first rotation. substantially perpendicular to the axis and the second axis of rotation, and the body stop +@
A motor device characterized by forming two obtuse angles of substantially symmetrical with one axis of a line and two acute angles of true female symmetry with the axis of rest of the line. 2. The means for applying the first and second magnetic fields are substantially symmetrical with respect to the first axis of rest;
'*And the second pause! a first pole piece that strikes a second pole face that is substantially symmetrical with respect to the II line;
together with the first magnetic pole surface, a sixth magnetic pole self-supporting and a fourth magnetic pole defining a first substantially circular/cylindrical space having an axis substantially coinciding with the first rotation m-line; Magnetic pole face? a second pole piece and a sixth pole piece each having a second pole piece and a sixth pole piece that are substantially symmetrical about a second axis of rest and that together with said second pole face are substantially coincident with a second axis of rotation; a fourth pole piece and a fifth pole piece each having a fifth pole face and a sixth pole face respectively defining a second substantially circular, i-shaped space which governs the 11111 points; a first winding comprising a core having first and second ends 2 connected to a second pole piece and a fourth pole piece; and a first winding comprising a core having first and second ends 2 connected to said sixth and fifth pole pieces, respectively. a second winding including a core having first and second ends, the first magnetic axis being oriented in a direction from the center of the first magnetic pole face toward the first rotating magnetic line. and the second magnetic axis is oriented in a direction from the center of the second magnetic pole face toward the second rotation axis, or the two magnetic axes are oriented in opposite directions. The motor device according to item 1. 3 means for orienting the first and second magnetic axes coupled to the first permanent magnet in a plane passing substantially through the center of the first pole face and containing the first axis of rotation; a sixth permanent magnet having a sixth magnetic axis disposed therein; and a fourth magnet substantially disposed within a plane that includes the second axis of rotation and passes through the center of the second magnetic pole face. 3. The motor device according to claim 2, further comprising a fourth permanent magnet having a shaft and coupled to the second permanent magnet. 4. The means for orienting the @1 and second magnetic axes further comprises a means for orienting the sixth magnetic axis with respect to a straight line perpendicular to the first axis of rotation and passing through the center of the first pole face. A fifth permanent magnet having a fifth magnetic axis that is symmetrical with respect to the magnetic axis, and a fourth magnetic axis V substantially perpendicular to the second rotation axis and passing through the center of the second magnetic pole face. 7. The motor device according to claim 6, further comprising a sixth permanent magnet having a sixth magnetic axis symmetrical to the first permanent magnet. 5 The means for applying the first and second magnetic fields comprise a first pole face that is substantially symmetrical about a first body axis of rest and a second pole face that is substantially symmetrical about a second rest axis. a first pole piece having a pole face; and a first pole piece having an axis that is substantially symmetrical to each other about a first axis of rest and that, together with the first pole face, substantially coincides with a first axis of rotation. a second pole piece and a third pole piece respectively defining a sixth pole face and a fourth pole face defining a substantially cylindrical space; and substantially symmetrical to each other about a second axis of rest. a fifth pole face and a sixth pole face, respectively, which together with the second pole face define a substantially cylindrical second space having an axis substantially coincident with the second axis of rotation; a first armature connected to the second and fourth magnetic pole pieces and a second electric machine connected to the sixth and fifth magnetic pole pieces; a first winding and a second winding; and the first winding and the second winding? means for magnetically coupling to the first pole piece and the first and second armatures, respectively; a first magnetic axis extending from substantially the center of the first pole face to the first pole piece; oriented in a first direction toward a first axis of rotation;
2. The motor device of claim 1, wherein the magnetic axis of is oriented in a second direction substantially from the second axis of rotation toward the center of the second pole face. 6. Means for magnetically connecting the first and second windings to the first pole piece and the first and second armatures, respectively, are magnetically coupled to said two windings and said 2
Claims 1. A core having a central portion disposed between two windings and connected to a first pole piece and two ends connected to said first and second armatures respectively. The motor device according to item 5. Z the first and second windings, the first pole piece and the first
and means for magnetically contacting each of the second armatures are respectively magnetically coupled to the first winding and the second winding and respectively connected to the first pole piece. 6. The motor device according to claim 5, comprising a first core and a second core, each having a second end connected to the first armature and the second armature, respectively. 8. The means for orienting the first and second magnetic axes,
a sixth magnetic axis coupled to the first and second permanent magnets and arranged to orient the first magnetic axis in the first direction and the second magnetic axis in the second direction; The motor device according to claim 5, which includes a sixth permanent magnet. 9. The means for orienting the first and second magnetic axes further comprises a fourth magnetic axis having a fourth magnetic axis disposed substantially symmetrically to the sixth magnetic axis with respect to the first pole face. 9. The motor device according to claim 8, which includes a permanent magnet. 10.1!1 and means for orienting the second magnetic axis coupled to the first permanent magnet to align the first axis of rotation? a third permanent magnet having a sixth magnetic axis substantially disposed in a plane passing through the center of the first pole face; and a third permanent magnet coupled to the second permanent magnet and having a second axis of rotation. 6. The motor device according to claim 5, further comprising a fourth permanent magnet having a fourth magnetic axis substantially disposed within a plane passing through the center of the second magnetic pole face. 11. The means for orienting the first and second magnetic axes,
Furthermore, a fifth magnetic axis substantially symmetrical to the sixth magnetic axis with respect to a straight line perpendicular to the first rotation axis and passing through the center of the first magnetic pole face.
a fifth permanent magnet having a magnetic axis, and a sixth magnetic axis substantially symmetrical to the fourth magnetic axis with respect to a straight line perpendicular to the second axis of rotation and passing through the center of the second magnetic pole face. 11. The motor device according to claim 10, further comprising a sixth permanent magnet. 12. The motor device of claim 1, wherein the blunt angle value is about 1000 to about 1600 and the acute angle value is about 200 to about 800. 16, the value of the obtuse angle is equal to about 120° and the value of the acute angle is about 6
13. Motor arrangement according to claim 12, which is equal to 00.